WO2022224750A1 - Terminal, procédé de communication sans fil et station de base - Google Patents

Terminal, procédé de communication sans fil et station de base Download PDF

Info

Publication number
WO2022224750A1
WO2022224750A1 PCT/JP2022/015534 JP2022015534W WO2022224750A1 WO 2022224750 A1 WO2022224750 A1 WO 2022224750A1 JP 2022015534 W JP2022015534 W JP 2022015534W WO 2022224750 A1 WO2022224750 A1 WO 2022224750A1
Authority
WO
WIPO (PCT)
Prior art keywords
csi
measurement
nzp
trp
cmr
Prior art date
Application number
PCT/JP2022/015534
Other languages
English (en)
Japanese (ja)
Inventor
祐輝 松村
聡 永田
ジン ワン
ラン チン
Original Assignee
株式会社Ｎｔｔドコモ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to CN202280029455.9A priority Critical patent/CN117178527A/zh
Publication of WO2022224750A1 publication Critical patent/WO2022224750A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present disclosure relates to terminals, wireless communication methods, and base stations in next-generation mobile communication systems.
  • LTE Long Term Evolution
  • 3GPP Rel. 10-14 LTE-Advanced (3GPP Rel. 10-14) has been specified for the purpose of further increasing the capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).
  • LTE successor systems for example, 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 and later
  • 5G 5th generation mobile communication system
  • 5G+ 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • NR New Radio
  • TRP transmission/reception point
  • panels multi-panel
  • PDSCH transmission user terminal
  • UE User Equipment
  • CSI channel state information
  • one object of the present disclosure is to provide a terminal, a wireless communication method, and a base station that appropriately measure and report CSI.
  • a terminal provides configuration information about first channel measurement resources related to a first channel measurement resource group and second channel measurement resources related to a second channel measurement resource group. and interference based on Non Zero Power Channel State Information Reference Signal (NZP CSI-RS) for Single Transmission/Reception Point (TRP) measurement hypotheses and a control unit that controls the measurement based on certain assumptions.
  • NZP CSI-RS Non Zero Power Channel State Information Reference Signal
  • TRP Transmission/Reception Point
  • CSI can be measured and reported appropriately.
  • FIG. 1 shows 3GPP Rel.
  • Figure 16 shows 16 CSI report configurations (CSI-ReportConfig);
  • FIG. 2 is a diagram illustrating a first example of CSI reporting configuration for implicit IMR configuration.
  • FIG. 3 is a diagram illustrating a second example of CSI reporting configuration for implicit IMR configuration.
  • FIG. 4 is a diagram showing an example of the relationship among CMR, CSI-IM, and NZP-IM in embodiment 1.1.1.
  • FIG. 5 is a diagram showing an example of the relationship among CMR, CSI-IM, and NZP-IM in Embodiment 1.1.2.
  • FIG. 6 is a diagram showing an example of the relationship among CMR, CSI-IM, and NZP-IM in Embodiment 1.2.
  • FIG. 1 shows 3GPP Rel.
  • Figure 16 shows 16 CSI report configurations (CSI-ReportConfig);
  • FIG. 2 is a diagram illustrating a first example of CSI reporting configuration for implicit IMR configuration.
  • FIG. 3
  • FIG. 7 is a diagram showing another example of the relationship among CMR, CSI-IM, and NZP-IM in Embodiment 1.2.
  • FIG. 8 is a diagram showing an example of the relationship among CMR, CSI-IM, and NZP-IM in Embodiment 1.3.
  • FIG. 9 is a diagram showing an example of QCL assumptions for CSI-IM/NZP-IM in the second embodiment.
  • FIG. 10 is a diagram showing an example of QCL assumptions for CSI-IM/NZP-IM in the second embodiment.
  • FIG. 11 is a diagram showing an example of the relationship among CMR, CSI-IM, and NZP-IM in embodiment 3.1.
  • FIG. 12 is a diagram showing an example of the relationship among CMR, CSI-IM, and NZP-IM in Embodiment 3.2.
  • 13A-13C are diagrams illustrating an example of a variation of the NZP-IM setup.
  • FIG. 14 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment;
  • FIG. 15 is a diagram illustrating an example of the configuration of a base station according to one embodiment.
  • FIG. 16 is a diagram illustrating an example of the configuration of a user terminal according to one embodiment.
  • FIG. 17 is a diagram illustrating an example of hardware configurations of a base station and user terminals according to an embodiment.
  • CSI report or reporting Rel.
  • a terminal also referred to as a user terminal, User Equipment (UE), etc. receives channel state information (CSI )) is generated (also referred to as determination, calculation, estimation, measurement, etc.), and the generated CSI is transmitted (also referred to as reporting, feedback, etc.) to the network (eg, base station).
  • the CSI may be transmitted to the base station using, for example, an uplink control channel (eg, Physical Uplink Control Channel (PUCCH)) or an uplink shared channel (eg, Physical Uplink Shared Channel (PUSCH)).
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • RSs used for generating CSI are, for example, channel state information reference signal (CSI-RS), synchronization signal/broadcast channel (Synchronization Signal/Physical Broadcast Channel (SS/PBCH)) block, synchronization It may be at least one of a signal (Synchronization Signal (SS)), a demodulation reference signal (DeModulation Reference Signal (DMRS)), and the like.
  • CSI-RS may include at least one of Non Zero Power (NZP) CSI-RS and CSI-Interference Management (CSI-IM).
  • NZP Non Zero Power
  • CSI-IM CSI-Interference Management
  • An SS/PBCH block is a block including SS and PBCH (and corresponding DMRS), and may also be referred to as SS block (SSB).
  • the SS may include at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • CSI is a channel quality indicator (CQI), a precoding matrix indicator (PMI), a CSI-RS resource indicator (CSI-RS resource indicator (CRI)), SS /PBCH Block Resource Indicator (SS/PBCH Block Resource Indicator (SSBRI)), Layer Indicator (LI), Rank Indicator (RI), L1-RSRP (reference signal reception at Layer 1 Power (Layer 1 Reference Signal Received Power)), L1-RSRQ (Reference Signal Received Quality), L1-SINR (Signal to Interference plus Noise Ratio), L1-SNR (Signal to Noise Ratio), etc. good.
  • the UE may receive information on CSI reporting (report configuration information) and control CSI reporting based on the report configuration information.
  • the report configuration information may be, for example, "CSI-ReportConfig" of the information element (Information Element (IE)) of Radio Resource Control (RRC).
  • IE Information Element
  • RRC Radio Resource Control
  • the RRC IE may be interchanged with RRC parameters, higher layer parameters, and the like.
  • the reporting configuration information may include, for example, at least one of the following.
  • Information about the type of CSI report (report type information, e.g. 'reportConfigType' in the RRC IE)
  • Information about one or more quantities of CSI to report (one or more CSI parameters)
  • report quantity information e.g. "reportQuantity” in RRC IE
  • resource information e.g. "CSI-ResourceConfigId” of RRC IE
  • Information about the frequency domain for which the CSI is to be reported (frequency domain information, e.g. "reportFreqConfiguration" in the RRC IE)
  • the report type information may be a periodic CSI (P-CSI) report, an aperiodic CSI (A-CSI) report, or a semi-persistent (semi-persistent, semi-persistent) report.
  • P-CSI periodic CSI
  • A-CSI aperiodic CSI
  • SP-CSI Stent CSI reports
  • the report amount information may specify at least one combination of the above CSI parameters (eg, CRI, RI, PMI, CQI, LI, L1-RSRP, etc.).
  • the resource information may be the ID of the RS resource.
  • the RS resources may include, for example, non-zero power CSI-RS resources or SSBs and CSI-IM resources (eg, zero power CSI-RS resources).
  • the frequency domain information may indicate the frequency granularity of the CSI report.
  • the frequency granularity may include, for example, widebands and subbands.
  • the wideband is the entire CSI reporting band. Wideband, for example, may be the entire carrier (Component Carrier (CC), cell, serving cell), or the entire bandwidth part (BWP) within a certain carrier. There may be.
  • the wideband may also be called the CSI reporting band, the entire CSI reporting band, or the like.
  • a subband is part of a wideband, and may be composed of one or more resource blocks (Resource Block (RB) or Physical Resource Block (PRB)).
  • the subband size may be determined according to the BWP size (the number of PRBs).
  • the frequency domain information may indicate whether wideband or subband PMI is to be reported (frequency domain information is, for example, the RRC IE used to determine whether wideband PMI reporting or subband PMI reporting may contain a 'pmi-FormatIndicator' in the
  • the UE may determine the frequency granularity of CSI reporting (ie, either wideband PMI reporting or subband PMI reporting) based on at least one of the reporting amount information and frequency domain information.
  • wideband PMI reporting is configured (determined)
  • one wideband PMI may be reported for the entire CSI reporting band.
  • subband PMI reporting is configured, a single wideband indication i 1 is reported for the entire CSI reporting band and subbands for each of the one or more subbands within the overall CSI reporting band.
  • One subband indication i 2 (eg, subband indication for each subband) may be reported.
  • the UE may perform channel estimation/interference measurement using the received RS (or configured channel measurement/interference measurement resource) to estimate the channel matrix H.
  • the UE feeds back indices (CQI, PMI, etc.) determined based on the estimated channel matrix.
  • the PMI may indicate a precoder matrix (simply referred to as a precoder) that the UE considers appropriate for use in downlink (DL) transmission to the UE.
  • a precoder may indicate a precoder matrix (simply referred to as a precoder) that the UE considers appropriate for use in downlink (DL) transmission to the UE.
  • Each value of PMI may correspond to one precoder matrix.
  • a set of PMI values may correspond to a set of different precoder matrices, called a precoder codebook (also simply codebook).
  • a CSI report may contain one or more types of CSI.
  • the CSI may include at least one of a first type (type 1 CSI) used for single beam selection and a second type (type 2 CSI) used for multibeam selection.
  • a single beam may be referred to as a single layer, and a multi-beam may be referred to as a plurality of beams.
  • type 1 CSI does not assume multi-user multiple input multiple outpiut (MIMO), and type 2 CSI may assume multi-user MIMO.
  • MIMO multi-user multiple input multiple outpiut
  • the codebooks may include a codebook for type 1 CSI (also referred to as type 1 codebook, etc.) and a codebook for type 2 CSI (also referred to as type 2 codebook, etc.).
  • Type 1 CSI may include Type 1 single-panel CSI and Type 1 multi-panel CSI, and different codebooks (Type 1 single-panel codebook, Type 1 multi-panel codebook) may be defined respectively.
  • Type 1 and Type I may be read interchangeably.
  • Type 2 and Type II may be read interchangeably.
  • the uplink control information (UCI) type may include at least one of Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), scheduling request (SR), and CSI.
  • UCI may be carried by PUCCH or may be carried by PUSCH.
  • UCI can contain one CSI part for wideband PMI feedback.
  • CSI report #n contains PMI wideband information, if reported.
  • UCI can contain two CSI parts for sub-band PMI feedback.
  • CSI Part 1 contains wideband PMI information.
  • CSI Part 2 contains one wideband PMI information and some sub-band PMI information.
  • CSI Part 1 and CSI Part 2 are encoded separately.
  • the UE is configured with a report setting of N (N ⁇ 1) CSI resource settings and a resource setting of M (M ⁇ 1) CSI resource settings by higher layers.
  • the CSI report configuration (CSI-ReportConfig) includes channel measurement resource settings (resourcesForChannelMeasurement), interference CSI-IM resource settings (csi-IM-ResourceForInterference), interference NZP-CSI-RS settings (nzp-CSI-RS -ResourceForInterference), reportQuantity, etc.
  • Each of the channel measurement resource setting, the interference CSI-IM resource setting, and the interference NZP-CSI-RS setting is associated with a CSI resource configuration (CSI-ResourceConfig, CSI-ResourceConfigId).
  • the CSI resource settings include a list of CSI-RS resource sets (csi-RS-ResourceSetList, eg, NZP-CSI-RS resource sets or CSI-IM resource sets).
  • FIG. 1 illustrates 3GPP Rel.
  • Figure 16 shows 16 CSI report configurations (CSI-ReportConfig);
  • CSI report settings that are information elements of RRC, resourcesForChannelMeasurement (CMR), csi-IM-ResourcesForInterference (ZP-IMR), nzp-CSI-RS-ResourcesForInterference (NZP-IMR), reportConfigType, etc. set.
  • reportConfigType includes periodic, semiPersistentOnPUCCH, semiPersistentOnPUSCH, aperiodic.
  • each trigger state configured using the higher layer parameter "CSI-AperiodicTriggerState" is associated with one or more CSI report configurations (CSI-ReportConfig).
  • CSI-ReportConfig CSI report configurations
  • That resource configuration (given by the higher layer parameter resourcesForChannelMeasurement) is for channel measurements for L1-RSRP or L1-SINR calculation.
  • the first resource configuration (given by the higher layer parameter resourcesForChannelMeasurement) is for channel measurements and the second resource configuration (given by the higher layer parameter csi-IM-ResourcesForInterference or nzp-CSI -RS-ResourcesForInterference) is for interference measurements performed in CSI-IM or NZP-CSI-RS.
  • the first resource configuration (given by the higher layer parameter resourcesForChannelMeasurement) is for channel measurements and the second resource configuration (given by the higher layer parameter CSI-IM-ResourcesForInterference) is for CSI-IM-ResourcesForInterference.
  • the third resource configuration (given by higher layer parameter nzp-CSI-RS-ResourcesForInterference) is for NZP-CSI-RS-based interference measurement.
  • the CSI-RS resource for interference measurement may be called Non Zero Power (NZP)-IMR, NZP-IM.
  • NZP-IMR Non Zero Power
  • CSI-IM and CSI-IMR may be read interchangeably.
  • NR may support interference measurements based on ZP-CSI-RS only, NZP-CSI-RS only, and ZP-CSI-RS and NZP-CSI-RS .
  • each CSI report configuration (CSI-ReportConfig) is linked to a periodic or semi-persistent resource setting.
  • the resource configuration is for channel measurements for L1-RSRP calculation.
  • the first resource configuration (given by the higher layer parameter resourcesForChannelMeasurement) is for channel measurements and the second resource configuration (given by the higher layer parameter csi-IM-ResourcesForInterference) For interference measurements performed in CSI-IM.
  • NR may only support interference measurements based on ZP-CSI-RS.
  • CSI-IM resource for interference measurement NZP-CSI-RS resource for interference measurement
  • NZP-CSI-RS resource for channel measurement are higher layers for configuring one or more CSI resources for channel and interference measurement. Set by signaling.
  • the UE is configured for one CSI report, the NZP-CSI-RS resource for channel measurement and the CSI-IM resource for interference measurement are Quasi-Co-Location (QCL) type D (QCL-D) may be assumed to be quasi-co-located (QCLed) per resource.
  • QCL Quasi-Co-Location
  • QL-D Quasi-Co-Location type D
  • the UE assumes that the same receive beam is used for interference measurement as indicated by the base station (gNB) for channel measurement. good.
  • NZP-CSI-RS resource for channel measurement and CSI-IM resource or NZP-CSI-RS resource for interference measurement is QCL with respect to QCL-D can be assumed.
  • each CSI-RS resource for channel measurement is assigned resource-by-resource to the CSI-IM resource according to the ordering of the CSI-RS resource and the CSI-IM resource in the corresponding resource set. Associated.
  • the number of CSI-RS resources for channel measurement may be the same as the number of CSI-IM resources.
  • the CSI-RS resource for channel measurement (Channel Measurement Resource (CMR)) and the CSI-RS resource for interference measurement (Interference Management Resource (IMR).
  • CMR Channel Measurement Resource
  • IMR Interference Management Resource
  • CRI k (k ⁇ 0) corresponds to the (k+1)th configured entry of the associated nzp-CSI-RSResource in the corresponding nzp-CSI-RS-ResourceSet for channel measurement
  • the corresponding csi - corresponds to the (k+1)th configured entry of the associated csi-IM-Resource in the IM-ResourceSet (if configured).
  • CRI k (k ⁇ 0) corresponds to the (k+1)th set CMR and the (k+1)th set IMR.
  • Multi-TRP In NR, one or more transmission/reception points (Transmission/Reception Points (TRP)) (multi TRP (multi TRP (MTRP))) uses one or more panels (multi-panel) to the UE DL transmission is under consideration. It is also being considered that the UE uses one or more panels to perform UL transmissions for one or more TRPs.
  • TRP Transmission/Reception Points
  • MTRP multi TRP
  • a plurality of TRPs may correspond to the same cell identifier (cell identifier (ID)) or may correspond to different cell IDs.
  • the cell ID may be a physical cell ID or a virtual cell ID.
  • Multi-TRPs may be connected by ideal/non-ideal backhauls to exchange information, data, and the like.
  • Different codewords (CW) and different layers may be transmitted from each TRP of the multi-TRP.
  • Non-Coherent Joint Transmission NCJT may be used as one form of multi-TRP transmission.
  • TRP1 modulate-maps the first codeword and layer-maps the first number of layers (eg, 2 layers) with the first precoding to transmit the first PDSCH.
  • TRP2 also modulates and layer-maps the second codeword to transmit a second PDSCH with a second number of layers (eg, 2 layers) with a second precoding.
  • multiple PDSCHs to be NCJTed may be defined as partially or completely overlapping in at least one of the time and frequency domains. That is, the first PDSCH from the first TRP and the second PDSCH from the second TRP may overlap at least one of time and frequency resources.
  • first PDSCH and second PDSCH are not quasi-co-located (QCL).
  • Reception of multiple PDSCHs may be translated as simultaneous reception of PDSCHs that are not of a certain QCL type (eg, QCL type D).
  • Multiple PDSCHs from multiple TRPs may be scheduled using one DCI (single DCI (S-DCI), single PDCCH) (single master mode ).
  • One DCI may be transmitted from one TRP of a multi-TRP.
  • Multiple PDSCHs from multiple TRPs may be scheduled using multiple DCIs (multiple DCI (M-DCI), multiple PDCCH (multiple PDCCH)) respectively (multimaster mode).
  • Multiple DCIs may be transmitted from multiple TRPs respectively. It may be assumed that the UE sends separate CSI reports (CSI reports) for each TRP for different TRPs. Such CSI feedback may be referred to as separate feedback, separate CSI feedback, and so on. In the present disclosure, "separate" may be read interchangeably with "independent.”
  • CSI feedback may be used to transmit CSI reports for both TRPs for one TRP.
  • Such CSI feedback may be referred to as joint feedback, joint CSI feedback, and so on.
  • the UE transmits a CSI report for TRP#1 using a certain PUCCH (PUCCH1) for TRP#1, and for TRP#2, a CSI report for TRP#2. It is configured to send CSI reports using another PUCCH (PUCCH2).
  • PUCCH1 a certain PUCCH
  • PUCCH2 a CSI report for TRP#2 for TRP#1 or #2.
  • a CSI report for separate feedback (which may be called a separate CSI report) may be configured using one CSI report configuration (CSI-ReportConfig) associated with one TRP.
  • CSI-ReportConfig one CSI report configuration associated with one TRP.
  • the CSI reporting configuration may correspond to one interference assumption for one TRP (that is, different CSI reporting configurations may be used for each TRP and for each interference assumption).
  • the CSI reporting configuration may accommodate multiple interference assumptions for one TRP (i.e., different CSI reporting configurations are used for each TRP, one CSI reporting configuration (may be associated with the premise of
  • a CSI report for joint feedback (which may be called a joint CSI report) may be configured using one CSI report configuration (CSI-ReportConfig) associated with multiple TRPs.
  • CSI-ReportConfig one CSI report configuration associated with multiple TRPs.
  • the CSI reporting configuration may correspond to one interference assumption for each of the TRPs (i.e., the CSI for interference assumption #1 for TRP #1 and the CSI for interference assumption #1 for TRP #2.
  • the CSI report including the CSI report is configured using a CSI reporting configuration, and the CSI report including the CSI of interference premise #2 for TRP#1 and the CSI of interference premise #1 for TRP#2 is configured using another CSI reporting configuration. may be set by default).
  • the CSI reporting configuration may correspond to multiple interference assumptions respectively for multiple TRPs (i.e., two CSIs for TRP#1: interference assumptions #1 and #2, and interference assumption #3 for TRP#2). , #4 may be configured using one CSI reporting configuration).
  • the CSI report settings for joint CSI reporting may include resource settings for each TRP (at least one of channel measurement resource settings, interference CSI-IM resource settings, and interference NZP-CSI-RS settings). .
  • Resource settings for a given TRP may be included and set in a resource setting group.
  • a resource setting group may be identified by a set resource setting group index.
  • a resource configuration group may be read interchangeably with a report group.
  • a resource configuration group index (which may be simply called a group index) is a CSI report (or CSI report configuration, CSI resource configuration, CSI-RS resource set, CSI-RS resource, TCI state , QCL, etc.) corresponds to which TRP).
  • group index #i may correspond to TRP #i.
  • the CSI reporting configuration for separate CSI reporting may also be called separate CSI reporting configuration, separate CSI configuration, or the like.
  • a CSI reporting configuration for joint CSI reporting may also be referred to as a joint CSI reporting configuration, a joint CSI configuration, and so on.
  • a CMR for one CSI may correspond to an IMR for another CSI (TRP).
  • the UE may assume that no explicit IMR setting is made for inter-TRP interference for a certain CSI reporting configuration (joint CSI configuration).
  • the specification may specify additional IMR assumptions when joint CSI settings are configured.
  • CMR for one TRP (resources specified by resourcesForChannelMeasurement) It may be assumed to be included in (or the same as) an additional NZP-IMR.
  • no additional NZP-IMR for that other TRP is explicitly configured.
  • Information about the additional NZP-IMR may be predetermined by the specification, or may be notified to the UE using at least one of RRC, MAC CE and DCI.
  • FIG. 2 is a diagram showing a first example of CSI reporting settings related to implicit IMR settings.
  • the UE may perform channel/interference measurements, etc. based on these assumptions and provide joint CSI reporting.
  • FIG. 3 is a diagram showing a second example of CSI reporting settings related to implicit IMR settings.
  • FIG. 3 is similar to FIG. 2 and therefore will not be described again.
  • FIG. 3 differs from FIG. 2 in that ZP-IMR and NZP-IMR are set in common (shared) by two TRPs.
  • the content of the present disclosure may be applied to separate CSI reports (separate CSI report settings). Also, in the present disclosure, the correspondence between ZP-IMR/NZP-IMR and corresponding one or more CMRs, corresponding one or more CSI-IM, etc. is explicitly (eg, by higher layer signaling) UE may be set to
  • CMR Pair CMR Group Allows for more dynamic channel/interference hypotheses for NCJT, covering both the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)) To do so, the evaluation and specification of CSI reporting for at least one transmission of DL multi-TRP and multi-panel is being considered.
  • FR1 Frequency Range 1
  • FR2 Frequency Range 2
  • CSI_A first TRP
  • CSI_B second TRP
  • CSI_C CSI for TRP1 considering TRP/inter-beam interference from TRP2 assuming NCJT transmission of MTRP
  • CSI_D CSI for TRP2 considering TRP/inter-beam interference from TRP1 assuming NCJT transmission of MTRP
  • the UE For CSI measurements related to the CSI reporting configuration for NCJT, the UE has K s (where K s is an integer, eg, a value of 2 or greater) in the CSI-RS resource set for CMR.
  • NZP CSI-RS may be configured, and N (where N is an integer, for example, a value of 1 or more) NZP CSI-RS resource pairs (also called CMR pairs, beam pairs, CSI pairs, etc.) may be set.
  • N is an integer, for example, a value of 1 or more
  • NZP CSI-RS resource pairs also called CMR pairs, beam pairs, CSI pairs, etc.
  • a UE may, for example, be configured with two CMR groups (a first CMR group and a second CMR group).
  • the first CMR group contains K 1 CMRs and the second CMR group contains K 2 CMRs.
  • K 1 +K 2 K s .
  • a UE may be configured with one or more CMR group configuration information via RRC signaling.
  • One CMR group setting information may include information indicating CMRs included in one CMR group (in other words, may correspond to one TRP), and may indicate CMRs included in each of a plurality of CMR groups. It may contain information (in other words, it may correspond to multiple TRPs).
  • the UE may be configured with information about which CMR group the CMR belongs to by RRC signaling. In this case, the UE can determine the CMRs included in the CMR group without the CMR group configuration information as described above.
  • the two CMR groups may each correspond to two TRPs of MTRP, or one to MTRP and the other to STRP.
  • the CMRs used for CSI measurement/reporting from two CMR groups may be determined by at least one of the following: ⁇ Determined in advance according to specifications.
  • all CMRs of K1 and K2 may be used for both NCJT (MTRP) and STRP measurement hypotheses.
  • MTRP NCJT
  • STRP STRP measurement hypotheses.
  • the N CMR pairs may be selected from among all possible pairs and set by higher layer signaling (eg, RRC signaling, MAC CE or a combination thereof).
  • higher layer signaling eg, RRC signaling, MAC CE or a combination thereof.
  • the NCJT measurement hypothesis may be considered separately from the STRP measurement hypothesis.
  • Option 1 The UE may be configured to report X CSI associated with STRP measurement hypotheses and 1 CSI associated with NCJT measurement hypotheses.
  • Option 2 The UE may be configured to report the highest one CSI associated with NCJT and STRP measurement hypotheses.
  • reporting of one CSI associated with the NCJT measurement hypothesis may be omitted (not implemented).
  • the recommended measurement hypothesis related to the CSI direction may be reported from the UE to the network.
  • Nmax the maximum value of N, and Ks ,max , the maximum value of Ks
  • N max 2
  • - UE, K s,max X (where X may be the above-mentioned X or may be different.
  • the X may be up to a predetermined number (eg, 8))
  • a default value may be specified for at least one of N max and K s,max ; - For combinations of N and K s (or N max and K s, max ) that satisfy N ⁇ N max and K s ⁇ K s, max , combinations supported by the UE may be defined, or using the UE capabilities may be reported to the network via
  • K 1 , K 2 , K s , N, M, N max , K s, max, etc. described above may be determined in advance by specifications, or may be set/notified to the UE by higher layer signaling/physical layer signaling. or determined based on UE capabilities.
  • NCJT NCJT
  • MTRP MTRP measurement
  • MTRP hypothesis MTRP measurement hypothesis, etc.
  • first”, “last”, “first/last”, “even-numbered (in other words, the corresponding entry is even-numbered or the index is even)”, “odd-numbered ( In other words, “the corresponding entry is odd-numbered or the index is odd-numbered)”, “even-numbered/odd-numbered”, etc. may be read interchangeably.
  • A/B and “at least one of A and B” may be read interchangeably.
  • Panel, Beam, Panel Group, Beam Group, Uplink (UL) transmitting entity, TRP, Spatial Relationship Information (SRI), Spatial Relationship, Control Resource Set (COntrol Resource SET (CORESET)), Physical Downlink Shared Channel (PDSCH), codeword, base station, predetermined antenna port (e.g., demodulation reference signal (DMRS) port), predetermined antenna port group (e.g., DMRS port group), predetermined group (e.g., Code Division Multiplexing (CDM) group, predetermined reference signal group, CORESET group), predetermined resource (e.g., predetermined reference signal resource), predetermined resource set (e.g., predetermined reference signal resource set) , CORESET pool, PUCCH group (PUCCH resource group), spatial relationship group, downlink TCI state (DL TCI state), uplink TCI state (UL TCI state), unified TCI state, etc. may be read interchangeably.
  • DMRS demodulation reference signal
  • CORESET Code Division Multiplexing
  • the panel may relate to at least one of the group index of the SSB/CSI-RS group, the group index of the group-based beam reporting, the group index of the SSB/CSI-RS group for the group-based beam reporting.
  • the panel identifier (ID) and the panel may be read interchangeably.
  • ID and the panel may be read interchangeably.
  • TRP ID and TRP, CORESET group ID and CORESET group, etc. may be read interchangeably.
  • NCJT NCJT using multi-TRP
  • multi-PDSCH using NCJT multi-PDSCH
  • multiple PDSCHs from multi-TRP etc.
  • multi-PDSCH may mean multiple PDSCHs in which at least a part of time resources (eg, one symbol) overlap, or multiple PDSCHs in which all time resources (eg, all symbols) overlap.
  • multiple PDSCHs whose time resources do not all overlap multiple PDSCHs carrying the same TB or the same CW, or different UE beams (spatial It may mean multiple PDSCHs to which domain receive filters, QCL parameters) are applied.
  • normal TRP single TRP, S-TRP, single TRP system, single TRP transmission, and single PDSCH
  • multi-TRP, MTRP, multi-TRP system, multi-TRP transmission, and multi-PDSCH may be read interchangeably.
  • a single DCI, a single PDCCH, multiple TRPs based on a single DCI, and activating two TCI states on at least one TCI codepoint may be read interchangeably.
  • single TRP channels with single TRP, channels with one TCI state/spatial relationship, multi-TRP not enabled by RRC/DCI, multiple TCI states/spatial relations enabled by RRC/DCI no CORESET Pool Index (CORESETPoolIndex) value of 1 is set for any CORESET, and no codepoint in the TCI field is mapped to two TCI states;
  • CORESETPoolIndex CORESET Pool Index
  • first TRP time reread
  • first CORESET may mean one or more first CORESETs.
  • second TRP may be read interchangeably.
  • second CORESET may mean one or more second CORESETs.
  • channel measurement resource settings channel measurement resources, channel measurement CSI-RS resources, resourcesForChannelMeasurement, CMR, and CMR resources may be read interchangeably.
  • CSI-IM, CSI-IM resource, ZP-IMR, ZP-IMR resource, ZP-CSI-RS, ZP-CSI-RS resource, CSI-IM resource setting for interference, CSI-IM based (CSI -IM based) Resources for interference measurement, CSI-IM-ResourceForInterference, resources for interference measurement, and CSI-RS resources for interference measurement may be read interchangeably.
  • NZP-IM, NZP-IM resource (NZP-IMR), NZP-IMR resource, NZP-CSI-RS, NZP-CSI-RS resource, NZP-CSI-RS resource setting for interference, NZP-CSI- RS-based (NZP-CSI-RS based) resources for interference measurement, nzp-CSI-RS-ResourcesForInterference, resources for interference measurement, CSI-RS resources for interference measurement, etc. may be read interchangeably.
  • CSI reports, CSI report settings, CSI settings, resource settings, resource settings, etc. may be read interchangeably.
  • supporting, controlling, controllable, operating, capable of operating, executing, capable of executing, etc. may be read interchangeably.
  • FR1/2 in the present disclosure may be read as any frequency band other than FR1/2.
  • the first embodiment corresponds to the case where NZP-IMR is set for NCJT.
  • the first embodiment may be applied when the UE is configured with NZP CSI-RS based interference measurement for CMR pairs for NCJT measurement hypotheses in one CSI reporting configuration by RRC signaling.
  • the first embodiment focuses on NZP CSI-RS based interference measurements for STRP measurement hypotheses, and is broadly divided into embodiments 1.1-1.3.
  • embodiments 1.1-1.3 respectively, the following controls (assumptions) apply:
  • Embodiment 1.2 NZP CSI-RS based interference measurements are also configured for STRP measurement hypotheses.
  • Embodiment 1.3 Interference measurements based on NZP CSI-RS for STRP measurement hypotheses are signaled to the UE with RRC parameters specifying (for) shared NZP CSI-RS for NCJT measurement hypotheses enabled by
  • Embodiment 1.1 is further divided into three embodiments 1.1.1-1.1.3.
  • NZP-IMR may be configured/applied if NZP CSI-RS for NCJT measurement hypotheses only is configured in the CSI reporting configuration. Also, if NZP CSI-RS for NCJT measurement hypothesis and NZP CSI-RS for STRP measurement hypothesis are configured in CSI reporting configuration, NZP-IMR is not allowed to be configured/applied.
  • one CMR (CMR#0) is set for TRP#1 (for example, CMR group #1; the same applies to subsequent drawings), and TRP#2 (for example, CMR group #2; for subsequent drawings). ), one CMR (CMR#1) is set.
  • CMR # 0 and # 1 (CMR pair (# 0, # 1) may also be denoted.
  • CMR pair (# 0, # 1) is used for NCJT measurement hypotheses
  • CMR pairing information for specifying CMR pairs for NCJT measurement hypotheses for two CMR groups may be set/updated/notified to the UE by RRC/MAC CE/DCI.
  • a plurality of CMRs (CMR#0 and #1 in this example) corresponding to the same CSI-IM or the same NZP-IM may correspond to a CMR pair.
  • CMR#0 and #1 in this example corresponding to the same CSI-IM or the same NZP-IM may correspond to a CMR pair. The same applies to subsequent drawings.
  • #0, #a, #A, etc. represent indices, and may be arbitrary integers, for example, and are not limited to the exemplified values. The same applies to subsequent drawings.
  • correspondences may be set by being set in the same CSI report configuration (each index is included), the correspondence may be set by another RRC information element, or other may be implicitly determined from the parameters of The same may be applied to subsequent drawings.
  • CMRs #0 and #1 are set as CMRs for the NCJT measurement hypothesis, and CMRs for the STRP measurement hypothesis are not set.
  • NZP-IM#A is used for NCJT measurement hypotheses.
  • the UE performs measurements based on CMR pairs from the two TRPs assumed by NCJT.
  • the UE may assume a one-to-one mapping between CMRs associated with each TRP and CSI-IM/NZP-CSI-RS and make channel/interference measurements.
  • the UE may report one or more CSI regarding the measurement results to the network.
  • NZP-IMR may be configured/applied only if NZP CSI-RS for NCJT measurement hypotheses only is configured in CSI reporting configuration. Also, if NZP CSI-RS for NCJT measurement hypothesis and NZP CSI-RS for STRP measurement hypothesis are configured in CSI reporting configuration, NZP-IMR is not allowed to be configured/applied.
  • FIG. 5 is a diagram showing an example of the relationship among CMR, CSI-IM, and NZP-IM in Embodiment 1.1.2. Note that the description of points that may be the same as in the example of FIG. 4 will not be repeated (the same applies to subsequent drawings).
  • two CMRs (CMR#0, #1) are set for TRP#1, and two CMRs (CMR#2, #3) are set for TRP#2.
  • CMR#0 is used for STRP measurement hypotheses for TRP#1 and corresponds to CSI-IM#a.
  • the CMR pair (#1, #3) is used for NCJT measurement hypotheses and corresponds to CSI-IM#c and NZP-IM#A.
  • NZP-IM is not set for CMR for STRP measurement hypotheses.
  • NZP-IM#A is used for NCJT measurement hypotheses.
  • Embodiment 1.1.3 for the control (assumed) of embodiment 1.1 above, an additional condition not/to support interference measurement for STRP measurement hypotheses based on NZP-IMR is added to embodiment 1.1.3 above. Introduced in the case of 1.2. In other words, even if the above case of embodiment 1.1.2 is applicable, if/if this additional condition is not applicable, the UE performs interference measurement for the STRP measurement hypothesis based on NZP-IMR. can be implemented.
  • this CSI reporting configuration may assume that NZP-IMR for STRP measurement hypotheses is not configured in .
  • M, M', etc. may be determined in advance by specifications, may be set/notified to the UE by higher layer signaling/physical layer signaling, or may be determined based on the UE capability. good too.
  • Embodiment 1.2 The controls (assumptions) of Embodiment 1.2 above may be applied under certain conditions/cases.
  • the NZP-IMR may be set for the STRP measurement hypothesis.
  • the maximum allowed number (or maximum number) of NZP-IMRs for STRP measurement hypotheses may be a fixed value (eg, 1) or may be configured in the UE by RRC signaling. Alternatively, it may be determined based on UE capabilities.
  • the maximum allowed number (or maximum number) of NZP-IMRs for NCJT measurement hypotheses may be a fixed value (eg, 1) or may be configured in the UE by RRC signaling. Alternatively, it may be determined based on UE capabilities.
  • the maximum allowable number (or maximum number) of NZP-IMRs for STRP measurement hypotheses and NCJT measurement hypotheses may be fixed values (e.g., 1, 2) or may be set by RRC signaling. It may be set in the UE or determined based on the UE capabilities.
  • These maximum numbers may be the maximum numbers over all CMR groups, or may be the maximum numbers for each CMR group. For the latter, the maximum number per CMR group may be the same or different.
  • whether to configure/support interference measurement based on NZP CSI-RS for STRP measurement hypotheses for different cases may be configured to the UE by RRC signaling. Alternatively, it may be determined based on UE capabilities. This RRC signaling may be applied to control FR1 only, FR2 only, or both FR1 and FR2. Also, this UE capability may be for FR1 only, FR2 only, or both FR1 and FR2.
  • the CMR pair (#1, #2) is used for NCJT measurement hypotheses and corresponds to CSI-IM#b and NZP-IM#B.
  • NZP-IM#A is used for the STRP measurement hypothesis and NZP-IM#B is used for the NCJT measurement hypothesis.
  • two CMRs (CMR#0, #1) are set for TRP#1, and two CMRs (CMR#2, #3) are set for TRP#2.
  • the CMR pair (#1, #3) is used for NCJT measurement hypotheses and corresponds to CSI-IM#b and NZP-IM#B.
  • NZP-IM#A is used for the STRP measurement hypothesis and NZP-IM#B is used for the NCJT measurement hypothesis.
  • CMR#2 is not used for either measurement hypothesis. This may be the result, for example, of no NZP-IMs associated with CMR#2, due to the maximum allowed number of NZP-IMRs for STRP measurement hypotheses being one.
  • Embodiment 1.3 The controls (assumptions) of Embodiment 1.3 above may be applied under certain conditions/cases.
  • the NZP-IMR may be shared for the STRP measurement hypothesis and the NCJT measurement hypothesis (may be used for either hypothesis).
  • a shared NZP-IMR may be called a shared NZP-IMR (shared NZP-IMR).
  • NZP-IMR is shared (or supports being shared) for STRP measurement hypotheses and NCJT measurement hypotheses may be pre-specified (e.g. conditional ) and may be set/informed to the UE by higher layer signaling/physical layer signaling or may be determined based on UE capabilities.
  • the maximum allowed number (or maximum number) of shared NZP-IMRs for STRP measurement hypotheses and NCJT measurement hypotheses may be a fixed value (eg, 1, 2) or RRC signaling may be set in the UE by or may be determined based on the UE capabilities.
  • This maximum number may be the maximum number over all CMR groups or the maximum number for each CMR group. For the latter, the maximum number per CMR group may be the same or different.
  • the CMR pair (#1, #3) is used for NCJT measurement hypotheses and corresponds to CSI-IM#b and NZP-IM#A.
  • NZP-IM#A is used both for the STRP measurement hypothesis and for the NCJT measurement hypothesis.
  • CMR#2 is not used for either measurement hypothesis. This may be the result of no NZP-IMs associated with CMR#2, for example, by having a maximum allowed number of shared NZP-IMRs for STRP and NCJT measurement hypotheses of 1. .
  • Embodiments 1.1-1.3 Which of Embodiments 1.1 to 1.3 is applied for which case (the above case) may be configured in the UE by RRC signaling, or may be determined based on the UE capability. .
  • This RRC signaling (and not limited to any RRC signaling of this disclosure) may be applied to control FR1 only, FR2 only, or both FR1 and FR2.
  • this UE capability (but not limited to any UE capability of this disclosure) may be for FR1 only, FR2 only, or both FR1 and FR2.
  • the same embodiment may be applied to FR1 and FR2, or different embodiments may be applied.
  • NZP-IMR when NZP-IMR is configured for NCJT, NZP CSI-RS-based interference measurement for STRP measurement hypotheses can be appropriately controlled.
  • a second embodiment relates to QCL assumptions for CSI-IMR/NZP-IMR.
  • NZP-CSI-RS resources for channel measurement (CMR) and CSI-IMR or NZP-IMR is QCL with respect to QCL-D (QCLed) can be assumed.
  • the UE For NZP-IMR (NZP CSI-RS resources for interference measurement for CMR pairs) for NCJT measurement hypotheses, the UE has NZP-CSI-RS resources for channel measurement (NZP-CSI-RS resources for interference measurement for one CSI report) configured for CMR) and CSI-IMR or NZP-IMR for each TRP (per CMR group) may be assumed to be QCLed with respect to QCL-D.
  • the CSI-IM/NZP-IMR for the NCJT measurement hypothesis is 2 for each TRP.
  • Such assumptions may be utilized, for example, for CSI-IM/NZP-IMR in embodiments 1.1 and 1.2, CSI-IM in embodiment 1.3, and so on.
  • FIG. 9 is a diagram showing an example of QCL assumptions for CSI-IM/NZP-IM in the second embodiment. Since the example is similar to that of FIG. 7, redundant description will not be given.
  • the UE may assume that CSI-IM#a and NZP-IM#A for STRP measurement hypotheses are corresponding CMR#0 and QCL-D (QCL-Ded with CMR#0).
  • the UE determines that CSI-IM#b and NZP-IM#B for NCJT measurement hypotheses, CMR#1 and QCL-D for CSI of TRP#1, and CSI of TRP#2 It may be assumed that CMR#3 and QCL-D.
  • the UE shall, if at least one of the following conditions (1)-(3) is satisfied: may be assumed to have two QCL type D relationships for the TRP of (1) the CMR for the STRP measurement hypothesis is set equal to one of the CMRs of the indicated CMR pair for the NCJT measurement hypothesis; (2) From the indicated CMR pair for the NCJT measurement hypothesis above, one CMR is set to be used for the STRP measurement hypothesis (this condition is based on UE capabilities, for FR1 only, FR2 may be used for only or for both FR1 and FR2), (3) The CMR for the STRP measurement hypothesis is one of the CMRs of the indicated CMR pair for the NCJT measurement hypothesis and QCL-D.
  • Which of (1) to (3) is used for condition determination may be set in the UE by RRC signaling, or may be determined based on the UE capability.
  • This RRC signaling may be applied to control FR1 only, FR2 only, or both FR1 and FR2.
  • this UE capability may be for FR1 only, FR2 only, or both FR1 and FR2.
  • the same conditions may be used in FR1 and FR2, or different conditions may be used.
  • FIG. 10 is a diagram showing an example of QCL assumptions for CSI-IM/NZP-IM in the second embodiment. Since the example is similar to that of FIG. 8, redundant description will not be given. For this example, assume that CMR#0 is CMR#1 and QCL-D. This example follows from the above ( 3) satisfies the conditions.
  • the shared NZP-IMR (NZP-IM#A) for measurements for STRP measurement hypotheses and TRP#1 for NCJT measurement hypotheses
  • the shared NZP-IMR is may be assumed to be CMR#0/#1 and QCL-D.
  • the shared NZP-IMR is the corresponding CMR#3 and QCL-D can be assumed.
  • Embodiment 1.3 the second embodiment, described a shared NZP-IMR shared for the STRP measurement hypothesis and the NCJT measurement hypothesis, but this NZP-IMR is at least one of CMR and CSI-IM It may be reread. That is, configuration of shared CMR, shared CSI-IM, etc. shared for STRP measurement hypothesis and NCJT measurement hypothesis, QCL assumption, etc. may be controlled based on embodiment 1.3, second embodiment. .
  • shared CMR / shared CSI-IM / shared NZP-IMR UE capabilities may be common (one capability may indicate supportability) or separate. (different capabilities may indicate support for each).
  • Shared CMR/shared CSI-IM/shared NZP-IMR may be set only when at least one of the conditions (1) to (3) described in the second embodiment is satisfied.
  • shared CMR/shared CSI-IM/shared NZP-IMR where two QCL type D for each TRP measurement can be suitably specified for shared CMR/shared CSI-IM/shared NZP-IMR , a suitable measurement can be realized.
  • the UE can appropriately determine the QCL assumption for CSI-IMR/NZP-IMR.
  • the third embodiment corresponds to the case where NZP-IMR is not set for NCJT.
  • a third embodiment is that for one CSI reporting configuration (options 1 and 2) for the STRP and NCJT measurement hypotheses, the NZP CSI-RS based interference measurements for the CMR pairs for the NCJT measurement hypotheses are: May be applied if not configured in the UE.
  • the third embodiment focuses on NZP CSI-RS based interference measurements for STRP measurement hypotheses and is broadly divided into embodiments 3.1-3.2.
  • embodiments 3.1-3.2 respectively, the following controls (assumptions) apply:
  • Embodiment 3.1: NZP CSI-RS based interference measurements configured for STRP measurement hypotheses are always or under certain conditions not allowed (the interference measurements cannot be performed).
  • Embodiment 3.2: NZP CSI-RS based interference measurements configured for STRP measurement hypotheses are configured under certain conditions (the interference measurements can be performed).
  • NZP CSI-RS configured for STRP measurement hypotheses
  • M is greater than M' for a CSI reporting configuration, it may not be allowed to configure NZP-IMR for STRP measurement hypotheses in this CSI reporting configuration.
  • the interference measurement based on NZP CSI-RS (NZP-IMR) for STRP measurement hypotheses may be configured in the UE by RRC signaling or the UE It may be determined based on ability.
  • This RRC signaling (and not limited to any RRC signaling of this disclosure) may be applied to control FR1 only, FR2 only, or both FR1 and FR2.
  • this UE capability (but not limited to any UE capability of this disclosure) may be for FR1 only, FR2 only, or both FR1 and FR2.
  • FIG. 11 is a diagram showing an example of the relationship among CMR, CSI-IM and NZP-IM in Embodiment 3.1. Since the example is similar to that of FIG. 5, redundant description will not be given. FIG. 11 differs from FIG. 5 in that NZP-IMR is not set. In this example, the assumption is applied that NZP-IMR configuration is not allowed for CSI reporting configurations where M is 2 or greater.
  • Embodiment 3.2 The controls (assumptions) of Embodiment 3.2 above may be applied under certain conditions/cases.
  • the NZP-IMR may be set for the STRP measurement hypothesis.
  • whether to configure/support interference measurement based on NZP CSI-RS for STRP measurement hypotheses for different cases is configured to the UE by RRC signaling.
  • RRC signaling may be determined based on UE capabilities.
  • This RRC signaling may be applied to control FR1 only, FR2 only, or both FR1 and FR2.
  • this UE capability may be for FR1 only, FR2 only, or both FR1 and FR2.
  • the maximum allowed number (or maximum number) of NZP-IMRs for STRP measurement hypotheses may be a fixed value (eg, 1) or configured in the UE by RRC signaling. Alternatively, it may be determined based on UE capabilities.
  • FIG. 12 is a diagram showing an example of the relationship among CMR, CSI-IM and NZP-IM in Embodiment 3.2. Since the example is similar to that of FIG. 7, redundant description will not be given. FIG. 12 differs from FIG. 7 in that NZP-IMR#B is not set. In this example, the assumption that the maximum allowed number of NZP-IMRs for STRP measurement hypotheses is one is applied.
  • NZP CSI-RS-based interference measurement for STRP measurement hypotheses can be appropriately controlled when NZP-IMR is not configured for NCJT.
  • the fourth embodiment relates to NZP-IM setting distinction.
  • FIGS. 13A-13C are diagrams showing examples of variations of NZP-IM settings. Since FIG. 13A is the same example as FIG. 12, redundant description will not be given. FIG. 13A is an example where one NZP-IM is configured for STRP measurement hypotheses.
  • FIG. 13B is the same example as FIG. 13A, redundant description will not be given.
  • FIG. 13B differs from FIG. 13A in that NZP-IMR#A is associated with the CMR pair for the NCJT measurement hypothesis.
  • FIG. 13B is an example where one NZP-IM is configured for NCJT measurement hypotheses.
  • FIG. 13C is the same example as FIG. 8, duplicate description will not be given.
  • FIG. 13B is an example where one shared NZP-IM is configured for STRP measurement hypotheses and NCJT measurement hypotheses.
  • the CSI reporting configurations in FIGS. 13A-13C cannot be simply distinguished because they have the same index value, number of resources, etc. used.
  • an RRC parameter may be introduced that indicates that each NZP-IM is for a STRP measurement hypothesis or for an NCJT measurement hypothesis.
  • RRC information element "CSI-ResourceConfig" corresponding to NZP-IMR
  • RRC indicating whether this CSI resource configuration (or corresponding NZP CSI-RS) is for STRP measurement hypothesis or NCJT measurement hypothesis parameters may be included.
  • FIGS. 13A and 13B can be distinguished.
  • this parameter may indicate "for/not for STRP measurement hypothesis” or "for/not for NCJT measurement hypothesis”. If this parameter is not included, it indicates that this CSI resource configuration (or corresponding NZP CSI-RS) is for STRP measurement hypotheses, for NCJT measurement hypotheses, for neither, or for both. may mean.
  • An RRC parameter may also be introduced that indicates that each NZP-IM is for the STRP measurement hypothesis, for the NCJT measurement hypothesis, or shared by both hypotheses. For example, in the CSI resource configuration corresponding to NZP-IMR (RRC information element "CSI-ResourceConfig"), whether this CSI resource configuration (or the corresponding NZP CSI-RS) is for the STRP measurement hypothesis or the NCJT measurement hypothesis is shared An RRC parameter may be included that indicates whether the According to this parameter, Figures 13A to 13C can be distinguished.
  • this parameter may indicate "is/not for the STRP measurement hypothesis” or “is/is not for the NCJT measurement hypothesis” or “is/is not shared for the STRP measurement hypothesis and the NCJT measurement hypothesis”. If this parameter is not included, this CSI resource configuration (or the corresponding NZP CSI-RS) can be used for STRP measurement hypotheses, for NCJT measurement hypotheses, for neither, or for both ( or can be shared).
  • the measurement hypothesis for NZP-IMR can be set appropriately.
  • the UE may transmit (report) at least one of the following to the base station as UE capabilities (UE capability information): whether to support NZP CSI-RS based interference measurements for STRP measurements only; whether to support NZP CSI-RS based interference measurements for NCJT MTRP measurements only; whether to support NZP CSI-RS based interference measurements for both STRP and NCJT MTRP measurements; the limits of Ks/K1/K2/X to support (e.g.
  • each embodiment of the present disclosure provides that when the UE reports UE capabilities corresponding to the at least one to the network, and to the UE, the at least one UE capability is configured/activated by higher layer signaling. / where indicated, may be applied under conditions of at least one of Embodiments of the present disclosure may apply when certain higher layer parameters are configured/activated/indicated for the UE.
  • the above UE capabilities may be for FR1 only, FR2 only, or both FR1 and FR2.
  • UE capabilities may be common with respect to some of the cases, options, etc. described in the present disclosure (one capability may indicate supportability), or separate (different capabilities may indicate support for each).
  • wireless communication system A configuration of a wireless communication system according to an embodiment of the present disclosure will be described below.
  • communication is performed using any one of the radio communication methods according to the above embodiments of the present disclosure or a combination thereof.
  • FIG. 14 is a diagram showing an example of a schematic configuration of a wireless communication system according to one embodiment.
  • the wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc. specified by the Third Generation Partnership Project (3GPP). .
  • LTE Long Term Evolution
  • 5G NR 5th generation mobile communication system New Radio
  • 3GPP Third Generation Partnership Project
  • the wireless communication system 1 may also support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)).
  • RATs Radio Access Technologies
  • MR-DC is dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E -UTRA Dual Connectivity (NE-DC)), etc.
  • RATs Radio Access Technologies
  • MR-DC is dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E -UTRA Dual Connectivity (NE-DC)), etc.
  • LTE Evolved Universal Terrestrial Radio Access
  • EN-DC E-UTRA-NR Dual Connectivity
  • NE-DC NR-E -UTRA Dual Connectivity
  • the LTE (E-UTRA) base station (eNB) is the master node (MN), and the NR base station (gNB) is the secondary node (SN).
  • the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.
  • the wireless communication system 1 has dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC) in which both MN and SN are NR base stations (gNB) )) may be supported.
  • dual connectivity NR-NR Dual Connectivity (NN-DC) in which both MN and SN are NR base stations (gNB)
  • gNB NR base stations
  • a wireless communication system 1 includes a base station 11 forming a macrocell C1 with a relatively wide coverage, and base stations 12 (12a-12c) arranged in the macrocell C1 and forming a small cell C2 narrower than the macrocell C1. You may prepare.
  • a user terminal 20 may be located within at least one cell. The arrangement, number, etc. of each cell and user terminals 20 are not limited to the embodiment shown in the figure.
  • the base stations 11 and 12 are collectively referred to as the base station 10 when not distinguished.
  • the user terminal 20 may connect to at least one of the multiple base stations 10 .
  • the user terminal 20 may utilize at least one of carrier aggregation (CA) using a plurality of component carriers (CC) and dual connectivity (DC).
  • CA carrier aggregation
  • CC component carriers
  • DC dual connectivity
  • Each CC may be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)).
  • Macrocell C1 may be included in FR1, and small cell C2 may be included in FR2.
  • FR1 may be a frequency band below 6 GHz (sub-6 GHz)
  • FR2 may be a frequency band above 24 GHz (above-24 GHz). Note that the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a higher frequency band than FR2.
  • the user terminal 20 may communicate using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD) in each CC.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • a plurality of base stations 10 may be connected by wire (for example, an optical fiber conforming to Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (for example, NR communication).
  • wire for example, an optical fiber conforming to Common Public Radio Interface (CPRI), X2 interface, etc.
  • NR communication for example, when NR communication is used as a backhaul between the base stations 11 and 12, the base station 11 corresponding to the upper station is an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to the relay station (relay) is an IAB Also called a node.
  • IAB Integrated Access Backhaul
  • relay station relay station
  • the base station 10 may be connected to the core network 30 directly or via another base station 10 .
  • the core network 30 may include, for example, at least one of Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), and the like.
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the user terminal 20 may be a terminal compatible with at least one of communication schemes such as LTE, LTE-A, and 5G.
  • a radio access scheme based on orthogonal frequency division multiplexing may be used.
  • OFDM orthogonal frequency division multiplexing
  • CP-OFDM Cyclic Prefix OFDM
  • DFT-s-OFDM Discrete Fourier Transform Spread OFDM
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • a radio access method may be called a waveform.
  • other radio access schemes for example, other single-carrier transmission schemes and other multi-carrier transmission schemes
  • the UL and DL radio access schemes may be used as the UL and DL radio access schemes.
  • a downlink shared channel Physical Downlink Shared Channel (PDSCH)
  • PDSCH Physical Downlink Shared Channel
  • PBCH Physical Broadcast Channel
  • PDCCH Physical Downlink Control Channel
  • an uplink shared channel (PUSCH) shared by each user terminal 20 an uplink control channel (PUCCH), a random access channel (Physical Random Access Channel (PRACH)) or the like may be used.
  • PUSCH uplink shared channel
  • PUCCH uplink control channel
  • PRACH Physical Random Access Channel
  • User data, upper layer control information, System Information Block (SIB), etc. are transmitted by the PDSCH.
  • User data, higher layer control information, and the like may be transmitted by PUSCH.
  • a Master Information Block (MIB) may be transmitted by the PBCH.
  • Lower layer control information may be transmitted by the PDCCH.
  • the lower layer control information may include, for example, downlink control information (DCI) including scheduling information for at least one of PDSCH and PUSCH.
  • DCI downlink control information
  • the DCI that schedules PDSCH may be called DL assignment, DL DCI, etc.
  • the DCI that schedules PUSCH may be called UL grant, UL DCI, etc.
  • PDSCH may be replaced with DL data
  • PUSCH may be replaced with UL data.
  • a control resource set (CControl Resource SET (CORESET)) and a search space (search space) may be used for PDCCH detection.
  • CORESET corresponds to a resource searching for DCI.
  • the search space corresponds to the search area and search method of PDCCH candidates.
  • a CORESET may be associated with one or more search spaces. The UE may monitor CORESETs associated with certain search spaces based on the search space settings.
  • One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels.
  • One or more search spaces may be referred to as a search space set. Note that “search space”, “search space set”, “search space setting”, “search space set setting”, “CORESET”, “CORESET setting”, etc. in the present disclosure may be read interchangeably.
  • PUCCH channel state information
  • acknowledgment information for example, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK/NACK, etc.
  • SR scheduling request
  • a random access preamble for connection establishment with a cell may be transmitted by the PRACH.
  • downlink, uplink, etc. may be expressed without adding "link”.
  • various channels may be expressed without adding "Physical" to the head.
  • synchronization signals SS
  • downlink reference signals DL-RS
  • the DL-RS includes a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DeModulation Reference Signal (DMRS)), Positioning Reference Signal (PRS)), Phase Tracking Reference Signal (PTRS)), etc.
  • CRS cell-specific reference signal
  • CSI-RS channel state information reference signal
  • DMRS Demodulation reference signal
  • PRS Positioning Reference Signal
  • PTRS Phase Tracking Reference Signal
  • the synchronization signal may be, for example, at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • a signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be called SS/PBCH block, SS Block (SSB), and so on.
  • SS, SSB, etc. may also be referred to as reference signals.
  • DMRS may also be called a user terminal-specific reference signal (UE-specific reference signal).
  • FIG. 15 is a diagram illustrating an example of the configuration of a base station according to one embodiment.
  • the base station 10 comprises a control section 110 , a transmission/reception section 120 , a transmission/reception antenna 130 and a transmission line interface 140 .
  • One or more of each of the control unit 110, the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission line interface 140 may be provided.
  • this example mainly shows the functional blocks that characterize the present embodiment, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.
  • the control unit 110 controls the base station 10 as a whole.
  • the control unit 110 can be configured from a controller, a control circuit, and the like, which are explained based on common recognition in the technical field according to the present disclosure.
  • the control unit 110 may control signal generation, scheduling (eg, resource allocation, mapping), and the like.
  • the control unit 110 may control transmission/reception, measurement, etc. using the transmission/reception unit 120 , the transmission/reception antenna 130 and the transmission line interface 140 .
  • the control unit 110 may generate data to be transmitted as a signal, control information, a sequence, etc., and transfer them to the transmission/reception unit 120 .
  • the control unit 110 may perform call processing (setup, release, etc.) of communication channels, state management of the base station 10, management of radio resources, and the like.
  • the transmitting/receiving section 120 may include a baseband section 121 , a radio frequency (RF) section 122 and a measuring section 123 .
  • the baseband section 121 may include a transmission processing section 1211 and a reception processing section 1212 .
  • the transmitting/receiving unit 120 is configured from a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitting/receiving circuit, etc., which are explained based on common recognition in the technical field according to the present disclosure. be able to.
  • the transmission/reception unit 120 may be configured as an integrated transmission/reception unit, or may be configured from a transmission unit and a reception unit.
  • the transmission section may be composed of the transmission processing section 1211 and the RF section 122 .
  • the receiving section may be composed of a reception processing section 1212 , an RF section 122 and a measurement section 123 .
  • the transmitting/receiving antenna 130 can be configured from an antenna described based on common recognition in the technical field related to the present disclosure, such as an array antenna.
  • the transmitting/receiving unit 120 may transmit the above-described downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmitting/receiving unit 120 may receive the above-described uplink channel, uplink reference signal, and the like.
  • the transmitting/receiving unit 120 may form at least one of the transmission beam and the reception beam using digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), or the like.
  • digital beamforming eg, precoding
  • analog beamforming eg, phase rotation
  • the transmission/reception unit 120 (transmission processing unit 1211) performs Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (for example, RLC retransmission control), Medium Access Control (MAC) layer processing (for example, HARQ retransmission control), etc. may be performed to generate a bit string to be transmitted.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • HARQ retransmission control for example, HARQ retransmission control
  • the transmission/reception unit 120 (transmission processing unit 1211) performs channel coding (which may include error correction coding), modulation, mapping, filtering, and discrete Fourier transform (DFT) on the bit string to be transmitted. Processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, transmission processing such as digital-to-analog conversion may be performed, and the baseband signal may be output.
  • channel coding which may include error correction coding
  • modulation modulation
  • mapping mapping
  • filtering filtering
  • DFT discrete Fourier transform
  • DFT discrete Fourier transform
  • the transmitting/receiving unit 120 may perform modulation to a radio frequency band, filter processing, amplification, and the like on the baseband signal, and may transmit the radio frequency band signal via the transmitting/receiving antenna 130. .
  • the transmitting/receiving unit 120 may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transmitting/receiving antenna 130.
  • the transmission/reception unit 120 (reception processing unit 1212) performs analog-to-digital conversion, Fast Fourier transform (FFT) processing, and Inverse Discrete Fourier transform (IDFT) processing on the acquired baseband signal. )) processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing and PDCP layer processing. User data and the like may be acquired.
  • FFT Fast Fourier transform
  • IDFT Inverse Discrete Fourier transform
  • the transmitting/receiving unit 120 may measure the received signal.
  • the measurement unit 123 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, etc. based on the received signal.
  • the measurement unit 123 measures received power (for example, Reference Signal Received Power (RSRP)), reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)) , signal strength (for example, Received Signal Strength Indicator (RSSI)), channel information (for example, CSI), and the like may be measured.
  • RSRP Reference Signal Received Power
  • RSSQ Reference Signal Received Quality
  • SINR Signal to Noise Ratio
  • RSSI Received Signal Strength Indicator
  • channel information for example, CSI
  • the transmission path interface 140 transmits and receives signals (backhaul signaling) to and from devices included in the core network 30, other base stations 10, etc., and user data (user plane data) for the user terminal 20, control plane data, and the like. Data and the like may be obtained, transmitted, and the like.
  • the transmitter and receiver of the base station 10 in the present disclosure may be configured by at least one of the transmitter/receiver 120, the transmitter/receiver antenna 130, and the transmission path interface 140.
  • Transmitting/receiving section 120 transmits configuration information about the first channel measurement resource related to the first channel measurement resource group and the second channel measurement resource related to the second channel measurement resource group to the user. You may transmit to the terminal 20.
  • This setting information may be, for example, the RRC IE "CSI-ReportConfig" (or an IE included in this IE), or may be another RRC IE.
  • control unit 110 controls interference based on a non-zero power channel state information reference signal (NZP CSI-RS) for a single transmission/reception point (TRP) measurement hypothesis. It may be assumed that the user terminal 20 controls the measurements based on certain assumptions.
  • NZP CSI-RS non-zero power channel state information reference signal
  • TRP transmission/reception point
  • FIG. 16 is a diagram illustrating an example of the configuration of a user terminal according to one embodiment.
  • the user terminal 20 includes a control section 210 , a transmission/reception section 220 and a transmission/reception antenna 230 .
  • One or more of each of the control unit 210, the transmitting/receiving unit 220, and the transmitting/receiving antenna 230 may be provided.
  • this example mainly shows the functional blocks of the features of the present embodiment, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.
  • the control unit 210 controls the user terminal 20 as a whole.
  • the control unit 210 can be configured from a controller, a control circuit, and the like, which are explained based on common recognition in the technical field according to the present disclosure.
  • the control unit 210 may control signal generation, mapping, and the like.
  • the control unit 210 may control transmission/reception, measurement, etc. using the transmission/reception unit 220 and the transmission/reception antenna 230 .
  • the control unit 210 may generate data, control information, sequences, etc. to be transmitted as signals, and transfer them to the transmission/reception unit 220 .
  • the transmitting/receiving section 220 may include a baseband section 221 , an RF section 222 and a measurement section 223 .
  • the baseband section 221 may include a transmission processing section 2211 and a reception processing section 2212 .
  • the transmitting/receiving unit 220 can be configured from a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitting/receiving circuit, etc., which are explained based on common recognition in the technical field according to the present disclosure.
  • the transmission/reception unit 220 may be configured as an integrated transmission/reception unit, or may be configured from a transmission unit and a reception unit.
  • the transmission section may be composed of a transmission processing section 2211 and an RF section 222 .
  • the receiving section may include a reception processing section 2212 , an RF section 222 and a measurement section 223 .
  • the transmitting/receiving antenna 230 can be configured from an antenna described based on common recognition in the technical field related to the present disclosure, such as an array antenna.
  • the transmitting/receiving unit 220 may receive the above-described downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmitting/receiving unit 220 may transmit the above-described uplink channel, uplink reference signal, and the like.
  • the transmitter/receiver 220 may form at least one of the transmission beam and the reception beam using digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), or the like.
  • digital beamforming eg, precoding
  • analog beamforming eg, phase rotation
  • the transmission/reception unit 220 (transmission processing unit 2211) performs PDCP layer processing, RLC layer processing (for example, RLC retransmission control), MAC layer processing (for example, for data and control information acquired from the control unit 210, for example , HARQ retransmission control), etc., to generate a bit string to be transmitted.
  • RLC layer processing for example, RLC retransmission control
  • MAC layer processing for example, for data and control information acquired from the control unit 210, for example , HARQ retransmission control
  • the transmitting/receiving unit 220 (transmission processing unit 2211) performs channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), and IFFT processing on a bit string to be transmitted. , precoding, digital-analog conversion, and other transmission processing may be performed, and the baseband signal may be output.
  • Whether or not to apply DFT processing may be based on transform precoding settings. Transmitting/receiving unit 220 (transmission processing unit 2211), for a certain channel (for example, PUSCH), if transform precoding is enabled, the above to transmit the channel using the DFT-s-OFDM waveform
  • the DFT process may be performed as the transmission process, or otherwise the DFT process may not be performed as the transmission process.
  • the transmitting/receiving unit 220 may perform modulation to a radio frequency band, filter processing, amplification, and the like on the baseband signal, and may transmit the radio frequency band signal via the transmitting/receiving antenna 230. .
  • the transmitting/receiving section 220 may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transmitting/receiving antenna 230.
  • the transmission/reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (error correction) on the acquired baseband signal. decoding), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing may be applied to acquire user data and the like.
  • the transmitting/receiving section 220 may measure the received signal.
  • the measurement unit 223 may perform RRM measurement, CSI measurement, etc. based on the received signal.
  • the measuring unit 223 may measure received power (eg, RSRP), received quality (eg, RSRQ, SINR, SNR), signal strength (eg, RSSI), channel information (eg, CSI), and the like.
  • the measurement result may be output to control section 210 .
  • the transmitter and receiver of the user terminal 20 in the present disclosure may be configured by at least one of the transmitter/receiver 220 and the transmitter/receiver antenna 230 .
  • the transmitting/receiving unit 220 uses the first channel measurement resource related to the first channel measurement resource group (first CMR group) and the second channel measurement resource related to the second channel measurement resource group (second CMR group). and configuration information for channel measurement resources.
  • the configuration information may be, for example, the RRC IE "CSI-ReportConfig" (or an IE included in this IE), or may be another RRC IE.
  • the control unit 210 performs interference measurement based on a non-zero power channel state information reference signal (NZP CSI-RS) for a single transmission/reception point (TRP) measurement hypothesis. , may be controlled based on certain assumptions.
  • NZP CSI-RS non-zero power channel state information reference signal
  • TRP transmission/reception point
  • the control unit 210 may assume that interference measurement based on the NZP CSI-RS for the STRP measurement hypothesis is not supported.
  • the control unit 210 determines that the interference measurement based on the NZP CSI-RS for the STRP measurement hypothesis is the interference based on the NZP CSI-RS for the Non-Coherent Joint Transmission (NCJT) measurement hypothesis. It may be assumed that it is performed in addition to the measurement.
  • NJT Non-Coherent Joint Transmission
  • the control unit 210 determines that the interference measurement based on the NZP CSI-RS for the STRP measurement hypothesis is based on the shared NZP CSI-RS (shared CSI -RS, shared NZP-IM, etc.) may be assumed to be enabled by notifying an upper layer parameter.
  • each functional block may be implemented using one device that is physically or logically coupled, or directly or indirectly using two or more devices that are physically or logically separated (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices.
  • a functional block may be implemented by combining software in the one device or the plurality of devices.
  • function includes judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, deem , broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
  • a functional block (component) that performs transmission may be called a transmitting unit, a transmitter, or the like. In either case, as described above, the implementation method is not particularly limited.
  • a base station, a user terminal, etc. in an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure.
  • FIG. 17 is a diagram illustrating an example of hardware configurations of a base station and user terminals according to an embodiment.
  • the base station 10 and user terminal 20 described above may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. .
  • the hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured without some devices.
  • processor 1001 may be implemented by one or more chips.
  • predetermined software program
  • the processor 1001 performs calculations, communication via the communication device 1004 and at least one of reading and writing data in the memory 1002 and the storage 1003 .
  • the processor 1001 operates an operating system and controls the entire computer.
  • the processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like.
  • CPU central processing unit
  • control unit 110 210
  • transmission/reception unit 120 220
  • FIG. 10 FIG. 10
  • the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to them.
  • programs program codes
  • software modules software modules
  • data etc.
  • the control unit 110 (210) may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and other functional blocks may be similarly implemented.
  • the memory 1002 is a computer-readable recording medium, such as Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), or at least any other suitable storage medium. may be configured by one.
  • the memory 1002 may also be called a register, cache, main memory (main storage device), or the like.
  • the memory 1002 can store executable programs (program code), software modules, etc. for implementing a wireless communication method according to an embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (Compact Disc ROM (CD-ROM), etc.), a digital versatile disk, Blu-ray disc), removable disc, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium may be configured by Storage 1003 may also be called an auxiliary storage device.
  • a computer-readable recording medium for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (Compact Disc ROM (CD-ROM), etc.), a digital versatile disk, Blu-ray disc), removable disc, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium may be configured by Storage 1003 may also
  • the communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high-frequency switch, duplexer, filter, frequency synthesizer, etc. in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD), for example. may be configured to include
  • the transmitting/receiving unit 120 (220), the transmitting/receiving antenna 130 (230), and the like described above may be realized by the communication device 1004.
  • the transmitter/receiver 120 (220) may be physically or logically separated into a transmitter 120a (220a) and a receiver 120b (220b).
  • the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
  • Each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using different buses between devices.
  • the base station 10 and the user terminal 20 include a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), etc. It may be configured including hardware, and a part or all of each functional block may be realized using the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • PLD programmable logic device
  • FPGA field programmable gate array
  • a signal may also be a message.
  • a reference signal may be abbreviated as RS, and may also be called a pilot, a pilot signal, etc., depending on the applicable standard.
  • a component carrier may also be called a cell, a frequency carrier, a carrier frequency, or the like.
  • a radio frame may consist of one or more periods (frames) in the time domain.
  • Each of the one or more periods (frames) that make up a radio frame may be called a subframe.
  • a subframe may consist of one or more slots in the time domain.
  • a subframe may be a fixed time length (eg, 1 ms) independent of numerology.
  • a numerology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel.
  • Numerology for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration , a particular filtering process performed by the transceiver in the frequency domain, a particular windowing process performed by the transceiver in the time domain, and/or the like.
  • a slot may consist of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.) in the time domain.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • a slot may also be a unit of time based on numerology.
  • a slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot.
  • a PDSCH (or PUSCH) transmitted in time units larger than a minislot may be referred to as PDSCH (PUSCH) Mapping Type A.
  • PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations. Note that time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be read interchangeably.
  • one subframe may be called a TTI
  • a plurality of consecutive subframes may be called a TTI
  • one slot or one minislot may be called a TTI. That is, at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms may be Note that the unit representing the TTI may be called a slot, mini-slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum scheduling time unit in wireless communication.
  • a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis.
  • radio resources frequency bandwidth, transmission power, etc. that can be used by each user terminal
  • a TTI may be a transmission time unit such as a channel-encoded data packet (transport block), code block, or codeword, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.
  • one or more TTIs may be the minimum scheduling time unit. Also, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, or the like.
  • a TTI that is shorter than a normal TTI may be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
  • the long TTI (e.g., normal TTI, subframe, etc.) may be replaced with a TTI having a time length exceeding 1 ms
  • the short TTI e.g., shortened TTI, etc.
  • a TTI having the above TTI length may be read instead.
  • a resource block is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers (subcarriers) in the frequency domain.
  • the number of subcarriers included in the RB may be the same regardless of the neumerology, eg twelve.
  • the number of subcarriers included in an RB may be determined based on neumerology.
  • an RB may contain one or more symbols in the time domain and may be 1 slot, 1 minislot, 1 subframe or 1 TTI long.
  • One TTI, one subframe, etc. may each be configured with one or more resource blocks.
  • One or more RBs are Physical Resource Block (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB pair, RB Also called a pair.
  • PRB Physical Resource Block
  • SCG Sub-Carrier Group
  • REG Resource Element Group
  • PRB pair RB Also called a pair.
  • a resource block may be composed of one or more resource elements (Resource Element (RE)).
  • RE resource elements
  • 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
  • a Bandwidth Part (which may also be called a bandwidth part) represents a subset of contiguous common resource blocks (RBs) for a numerology on a carrier.
  • the common RB may be identified by an RB index based on the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • BWP may include UL BWP (BWP for UL) and DL BWP (BWP for DL).
  • BWP for UL
  • BWP for DL DL BWP
  • One or multiple BWPs may be configured for a UE within one carrier.
  • At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP.
  • BWP bitmap
  • radio frames, subframes, slots, minislots, symbols, etc. described above are merely examples.
  • the number of subframes contained in a radio frame, the number of slots per subframe or radio frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, the number of Configurations such as the number of subcarriers and the number of symbols in a TTI, symbol length, cyclic prefix (CP) length, etc. can be varied.
  • the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information. may be represented. For example, radio resources may be indicated by a predetermined index.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
  • information, signals, etc. can be output from a higher layer to a lower layer and/or from a lower layer to a higher layer.
  • Information, signals, etc. may be input and output through multiple network nodes.
  • Input/output information, signals, etc. may be stored in a specific location (for example, memory), or may be managed using a management table. Input and output information, signals, etc. may be overwritten, updated or appended. Output information, signals, etc. may be deleted. Input information, signals, etc. may be transmitted to other devices.
  • Uplink Control Information (UCI) Uplink Control Information
  • RRC Radio Resource Control
  • MIB Master Information Block
  • SIB System Information Block
  • SIB System Information Block
  • MAC Medium Access Control
  • the physical layer signaling may also be called Layer 1/Layer 2 (L1/L2) control information (L1/L2 control signal), L1 control information (L1 control signal), and the like.
  • RRC signaling may also be called an RRC message, and may be, for example, an RRC connection setup message, an RRC connection reconfiguration message, or the like.
  • MAC signaling may be notified using, for example, a MAC Control Element (CE).
  • CE MAC Control Element
  • notification of predetermined information is not limited to explicit notification, but implicit notification (for example, by not notifying the predetermined information or by providing another information by notice of
  • the determination may be made by a value (0 or 1) represented by 1 bit, or by a boolean value represented by true or false. , may be performed by numerical comparison (eg, comparison with a predetermined value).
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • the software uses wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) , a server, or other remote source, these wired and/or wireless technologies are included within the definition of transmission media.
  • a “network” may refer to devices (eg, base stations) included in a network.
  • precoding "precoding weight”
  • QCL Quality of Co-Location
  • TCI state Transmission Configuration Indication state
  • spatialal patial relation
  • spatialal domain filter "transmission power”
  • phase rotation "antenna port
  • antenna port group "layer”
  • number of layers Terms such as “rank”, “resource”, “resource set”, “resource group”, “beam”, “beam width”, “beam angle”, “antenna”, “antenna element”, “panel” are interchangeable. can be used as intended.
  • base station BS
  • radio base station fixed station
  • NodeB NodeB
  • eNB eNodeB
  • gNB gNodeB
  • Access point "Transmission Point (TP)”, “Reception Point (RP)”, “Transmission/Reception Point (TRP)”, “Panel”
  • a base station may also be referred to by terms such as macrocell, small cell, femtocell, picocell, and the like.
  • a base station can accommodate one or more (eg, three) cells.
  • the overall coverage area of the base station can be partitioned into multiple smaller areas, and each smaller area is assigned to a base station subsystem (e.g., a small indoor base station (Remote Radio)). Head (RRH))) may also provide communication services.
  • a base station subsystem e.g., a small indoor base station (Remote Radio)). Head (RRH)
  • RRH Head
  • the terms "cell” or “sector” refer to part or all of the coverage area of at least one of the base stations and base station subsystems that serve communication within such coverage.
  • MS Mobile Station
  • UE User Equipment
  • Mobile stations include subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals. , a handset, a user agent, a mobile client, a client, or some other suitable term.
  • At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, or the like.
  • At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like.
  • the mobile object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ).
  • at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
  • at least one of the base station and mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a user terminal.
  • communication between a base station and a user terminal is replaced with communication between multiple user terminals (for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.)
  • the user terminal 20 may have the functions of the base station 10 described above.
  • words such as "uplink” and “downlink” may be replaced with words corresponding to communication between terminals (for example, "sidelink”).
  • uplink channels, downlink channels, etc. may be read as sidelink channels.
  • user terminals in the present disclosure may be read as base stations.
  • the base station 10 may have the functions of the user terminal 20 described above.
  • operations that are assumed to be performed by the base station may be performed by its upper node in some cases.
  • various operations performed for communication with a terminal may involve the base station, one or more network nodes other than the base station (e.g., Clearly, this can be done by a Mobility Management Entity (MME), Serving-Gateway (S-GW), etc. (but not limited to these) or a combination thereof.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • each aspect/embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching along with execution. Also, the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in the present disclosure may be rearranged as long as there is no contradiction. For example, the methods described in this disclosure present elements of the various steps using a sample order, and are not limited to the specific order presented.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • xG xG (xG (x is, for example, an integer or a decimal number)
  • Future Radio Access FAA
  • RAT New - Radio Access Technology
  • NR New Radio
  • NX New radio access
  • FX Future generation radio access
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi®
  • IEEE 802.16 WiMAX®
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth®, or other suitable wireless It may be applied to systems using communication methods, next-generation systems extended based on these, and the like. Also, multiple systems may be applied to systems using communication methods, next-generation systems extended based on these, and the like
  • any reference to elements using the "first,” “second,” etc. designations used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, references to first and second elements do not imply that only two elements may be employed or that the first element must precede the second element in any way.
  • determining includes judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiry ( For example, looking up in a table, database, or another data structure), ascertaining, etc. may be considered to be “determining.”
  • determining (deciding) includes receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access ( accessing (e.g., accessing data in memory), etc.
  • determining is considered to be “determining” resolving, selecting, choosing, establishing, comparing, etc. good too. That is, “determining (determining)” may be regarded as “determining (determining)” some action.
  • connection refers to any connection or coupling, direct or indirect, between two or more elements. and can include the presence of one or more intermediate elements between two elements that are “connected” or “coupled” to each other. Couplings or connections between elements may be physical, logical, or a combination thereof. For example, "connection” may be read as "access”.
  • radio frequency domain when two elements are connected, using one or more wires, cables, printed electrical connections, etc., and as some non-limiting and non-exhaustive examples, radio frequency domain, microwave They can be considered to be “connected” or “coupled” together using the domain, electromagnetic energy having wavelengths in the optical (both visible and invisible) domain, and the like.
  • a and B are different may mean “A and B are different from each other.”
  • the term may also mean that "A and B are different from C”.
  • Terms such as “separate,” “coupled,” etc. may also be interpreted in the same manner as “different.”

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'objectif de la présente invention est de mesurer et de signaler de manière appropriée les informations sur l'état des canaux (CSI). Un terminal selon un mode de réalisation de la présente invention comprend : une unité de réception pour recevoir des informations de configuration se rapportant à une première ressource de mesure de canal concernant un premier groupe de ressources de mesure de canal, et une seconde ressource de mesure de canal concernant un second groupe de ressources de mesure de canal ; et une unité de commande pour effectuer une commande sur la base de certaines hypothèses concernant la mesure d'interférence basée sur un signal de référence d'informations d'état de canal de puissance non nulle (NZP CSI-RS) pour supposer la mesure d'un seul point d'émission/réception (TRP).
PCT/JP2022/015534 2021-04-23 2022-03-29 Terminal, procédé de communication sans fil et station de base WO2022224750A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202280029455.9A CN117178527A (zh) 2021-04-23 2022-03-29 终端、无线通信方法以及基站

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021073616 2021-04-23
JP2021-073616 2021-04-23

Publications (1)

Publication Number Publication Date
WO2022224750A1 true WO2022224750A1 (fr) 2022-10-27

Family

ID=83722155

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/015534 WO2022224750A1 (fr) 2021-04-23 2022-03-29 Terminal, procédé de communication sans fil et station de base

Country Status (2)

Country Link
CN (1) CN117178527A (fr)
WO (1) WO2022224750A1 (fr)

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
AD HOC CHAIR SAMSUNG: "Session notes for 8.1 (Further enhancements on MIMO for NR)", 3GPP DRAFT R1-2104138, 3GPP, FR, 12 April 2021 (2021-04-12) - 20 April 2021 (2021-04-20), FR, pages 1 - 21, XP009540421 *
NTT DOCOMO, INC: "Discussion on CSI enhancements", 3GPP DRAFT; R1-2101603, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 19 January 2021 (2021-01-19), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051971758 *
VIVO: "Further discussion and evaluation on MTRP CSI and partial reciprocity", 3GPP DRAFT; R1-2007650, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20201026 - 20201113, 24 October 2020 (2020-10-24), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051946459 *

Also Published As

Publication number Publication date
CN117178527A (zh) 2023-12-05

Similar Documents

Publication Publication Date Title
WO2022070361A1 (fr) Terminal, procédé de communication radio et station de base
WO2021220474A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022168874A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022070360A1 (fr) Terminal, procédé de communication radio et station de base
WO2021220475A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022244491A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022153458A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2021220473A1 (fr) Terminal, procédé de communication sans fil, et station de base
JP7230179B2 (ja) 端末、無線通信方法及びシステム
WO2022224750A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2023281673A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022157932A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022239131A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022163558A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022208786A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2023022144A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2023281680A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2021199436A1 (fr) Terminal, procédé de communication radio et station de base
JP7481433B2 (ja) 端末、無線通信方法、基地局及びシステム
WO2022163556A1 (fr) Terminal, procédé de communication sans fil et station de base
US20230046218A1 (en) Terminal, radio communication method, and base station
WO2023026911A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022239254A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022239255A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2022190238A1 (fr) Terminal, procédé de communication sans fil, et station de base

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22791525

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22791525

Country of ref document: EP

Kind code of ref document: A1